[PATCH 3.18 07/59] dm thin metadata: call precommit before saving the roots

From: Greg Kroah-Hartman
Date: Tue May 23 2017 - 17:01:34 EST


3.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Joe Thornber <ejt@xxxxxxxxxx>

commit 91bcdb92d39711d1adb40c26b653b7978d93eb98 upstream.

These calls were the wrong way round in __write_initial_superblock.

Signed-off-by: Joe Thornber <ejt@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/md/dm-thin-metadata.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -484,11 +484,11 @@ static int __write_initial_superblock(st
if (r < 0)
return r;

- r = save_sm_roots(pmd);
+ r = dm_tm_pre_commit(pmd->tm);
if (r < 0)
return r;

- r = dm_tm_pre_commit(pmd->tm);
+ r = save_sm_roots(pmd);
if (r < 0)
return r;